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Finding the Fourth Proportional to 9,468.80, 13,067.20 and 5,276.80

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Solution

The fourth proportional to 9,468.80, 13,067.20 and 5,276.80 is: 7,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,468.80 : 13,067.20 = 5,276.80 : x
  2. Step 2: Convert to fraction form
    9,468.80/13,067.20 = 5,276.80/x
  3. Step 3: Cross multiply
    9,468.80x = 13,067.20 × 5,276.80
  4. Step 4: Simplify right side
    9,468.80x = 68,953,000.96
  5. Step 5: Solve for x
    x = 68,953,000.96/9,468.80
  6. Step 6: Final answer
    x = 7,282.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.